Speed Unit Converter
Convert between km/h, mph, m/s, knots, feet per second and Mach instantly. Select the source unit and enter a value.
Value & Unit / Valor y Unidad
Converting… / Convirtiendo…
Convert between km/h, mph, m/s, knots, feet per second and Mach instantly. Select the source unit and enter a value.
| From | To | Multiply by |
|---|---|---|
| km/h | mph | 0.621371 |
| mph | km/h | 1.60934 |
| m/s | km/h | 3.6 |
| km/h | m/s | 0.277778 |
| knots (kn) | km/h | 1.852 |
100 km/h equals approximately 62.14 mph.
One knot equals 1.852 km/h. Knots are used in maritime and aviation navigation.
Mach 1 is the speed of sound, approximately 340.29 m/s (1,225 km/h or 761 mph) at sea level and 15°C.